What causes a P2097 code?
Code P2097 is typically caused by one of the following: A clogged or leaking exhaust. A problem with the O2 sensor or its circuit.
What does post catalyst fuel trim system too rich mean?
What the P2097 code means. The engine control module (ECM) uses the second oxygen sensors to measure the exhaust after it has passed the catalytic converter. When the oxygen sensors after the catalytic converter relay to the ECM that the fuel trim is too rich, then the P2097 code is set.
What is post catalyst fuel trim?
Code P2096 stands for “Post Catalyst Fuel Trim System Too Lean (Bank 1)”. The PCM keeps track of the fuel mixture ratio through oxygen sensors in the exhaust system that measure the amount of oxygen burned by the engine. There is an oxygen sensor positioned before and after the catalytic converter.
What is post catalyst fuel trim too lean Bank 2?
Diagnostic trouble code (DTC) stands for “P2098 Post Catalyst Fuel Trim System Too Lean (Bank 2). ” It means the exhaust stream on the bank 2 side contains higher oxygen levels exiting the converter than it should. This code points to a too-lean reading from the downstream sensor.
What does code po138 mean?
What the P0138 code means. P0138 is the OBD-II generic code indicating the O2 sensor for bank 1 sensor 2 fails to have a lower voltage output below 1.2 volts for more than 10 seconds indicating a lack of oxygen in the exhaust stream.
What does fuel trim lean mean?
Lean. Running lean means that the engine doesn’t have enough fuel to match the levels of oxygen that it’s receiving. The ECU should be able to open the fuel injectors more to allow for higher fuel levels in the mixture.
Is P219A code bad?
An incorrect air to fuel ratio may be the result of insufficient fuel or excessive air (vacuum). A code P219A should be categorized as severe and rectified as quickly as possible.
What does the post catalyst fuel trim code p2097 mean?
Code P2097 may be set when the downstream bank 1 oxygen sensor registers a rich condition. What Does the P2097 Code Mean? Diagnostic trouble code (DTC) P2097 stands for Post Catalyst Fuel Trim System Too Rich Bank 1. It is triggered when the downstream bank 1 oxygen sensor registers a rich condition.
What does OBD II fault code p2097 mean?
What Does Code P2097 Mean? OBD II fault code P2097 is defined by most manufacturers as P2097 as “Post catalytic converter fuel trim (FT), bank 1 – too rich”. Note that although GM defines this code as “Post Catalyst Fuel Trim System High Limit”, both definitions have the same basic meaning.
What is the OBD code for post catalyst fuel trim?
P2097 code definition. P2097 is a general OBD-II diagnostic trouble code that indicates a fault with the post catalyst fuel trim system being too rich in bank 1.
When does the PCM set code p2097?
In both cases, the PCM (Powertrain Control Module) sets code P2097 when it detects an excessive amount of un-combusted hydrocarbon molecules in the exhaust stream downstream of the catalytic converter on the one hand, and that it (the PCM) is unable to correct the air/fuel mixture, on the other.